That was a real giant step.
“The footprints have been described as ‘one of the most important discoveries, if not the most important discovery that has been made on [Britain's] shores,’ by Dr Nick Ashton of the British Museum.”
However: “The hollows were washed away not long after they were identified. The team were, however, able to capture the footprints on video that will be shown at an exhibition at London’s Natural History Museum later this month.”
My amateurishness in such matters, but: The footprints were made 800,000 years ago but then washed away after discovery.